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Oracle IS NULL and IS NOT NULL MCQs

Oracle IS NULL and IS NOT NULL MCQs: This section contains multiple-choice questions and answers on IS NULL and IS NOT NULL in Oracle.
Submitted by Anushree Goswami, on June 27, 2022

1. ____ is used by Oracle to check whether a value is not null.

1. IS NULL
2. IS NOT NULL
3. Both A and B
4. None of the above

Answer: B) IS NOT NULL

Explanation:

"IS NOT NULL" is used by Oracle to check whether a value is not null.

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2. Oracle uses IS NOT NULL when it is ____ data.

1. Selecting
2. Inserting
3. Updating
4. All of the above

Answer: D) All of the above

Explanation:

Oracle uses IS NOT NULL when it is selecting data, inserting data, updating data, and deleting data.

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3. What is the syntax of Oracle IS NOT NULL?

1. Expression IS NULL
2. Expression IS NOT NULL
3. Expression NOT NULL IS
4. IS Expression NOT NULL

Answer: B) Expression IS NOT NULL

Explanation:

The syntax of Oracle IS NOT NULL is Expression: "IS NOT NULL".

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4. What is the parameter in the syntax of Oracle IS NOT NULL?

1. Expressions
2. Conditions
3. Values
4. None

Answer: A) Expressions

Explanation:

The parameter in the syntax of Oracle IS NOT NULL is Expressions.

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5. Any ____ can be expressed as an expression to check if it is not null.

1. Column name
2. Value
3. Both A and B
4. None of the above

Answer: C) Both A and B

Explanation:

Any column name or value can be expressed as an expression to check if it is not null.

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6. A ____ value is returned in IS NOT NULL.

1. True
2. False

Answer: A) True

Explanation:

A true value is returned in IS NOT NULL.

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7. What is the syntax of Oracle NULL?

1. Expression IS NULL
2. IS Expression NULL
3. NULL IS Expression
4. IS NULL Expression

Answer: A) Expression IS NULL

Explanation:

The syntax of Oracle NULL is Expression IS NULL.

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8. The condition returns ____ in NULL.

1. True
2. False

Answer: B) False

Explanation:

The condition returns false in NULL.

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